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C. C. MURPHY, DEC'D. z. a. MURPHY, :xzcumx.

CAR DOOR.

APPLICATION FILED JULY 13. ms.

Patented Nov. 30, 1920.

2 SHEETS-SHEET l- C. C. MURPHY, DECD.

E- B- MURPHY, EXECUTRIX.

CAR DOOR.

APPLICATION man JULY 13,4918.

Patented Nov. 30, 1920.

SHEET' 2- 2 SHEETS EUNITED STATES PATENT, OFFICE.

CLINTON c. MURPHY, or CHICAGO, ILLINOIS; EDNA BLANKE MERE o sAn) CLINTON (L'MURIPHY, DECEASED, 'ASSIGNOR TO WALTER NEW YORK, N. Y.

To all whom it may concern:

Be it known that I, CLINTON C. MURPHY, a citizen of the United States, residin at Chicago, in the county of Cook and S tate of Illinois, have invented new and useful Improvements in Car-Doors, of which the following is a full, clear, and exact description. a

My invention relatesto improvements in the construction of car doors, and particularly in sliding'car doors which are supported by and which travel back and forth upon a track secured to and projecting from the underframe of the car below the plane of the doorway.

v The principal-object of my invention is to so construct the car door and its fixtures that it will be held close against the door frame when closed; will prevent rain and dust and snow from being driven past its edges into the car; will sweep the track clear of ice and snow as it travels back and forth, and prevent the accumulation of moisture and cinders thereon and shed the same therefrom,

and thus keep the track free from obstructions that might otherwise interfere with the movements of the door. This I accomplish by the means hereinafter fully described, and as particularly pointed out in the claims.

In the drawings:

Figure 1 is a side view of a portion of a freight car showing my improvements applied thereto. 1

Fig. 2 is a vertical transverse section taken on dotted line 2-2, Fig. 1, and drawn to a 1 larger scale.

Fig. 3 is a horizontal transverse sectio taken on dotted line 3-3,"Fig; 1.

Fig. 4 is a side view of the lower left-hand corner portion of the car door and a fragment of the car, drawn to a larger scale.

' Fig. 5 is avertical section taken on dotted line 5-5, Fig. 1, showing the right-hand edge of the lower portion of the door.

Referring .to the drawings, 6 represents the sheathing of the side of the car; 7 the doorway-and 8 a sliding car door. The edges of door 8 are protected by rolled metal shapes. The upper edgeis protected by a special rolled metal shaped strip 10 which is HY, EXECUTRIX P. MURPHY, or

CAR-DOOR.

Specification of Letters Patent. Patent d N 30 1920 Application filed July 13, 1918. Serial No. 244,698.

. somewhat S-shaped in cross-section, which inner surface of the door, and its upper horizontal flange projecting outward and interlocking with the lower horizontal flange of an overhead horizontal guard 12. This guard 12 also consists of a special rolled -metal shape similar in cross-section to the interlocking strip 10, only it is reversed and its upper vertical flange secured to the fraIningof the car. The rear or right-hand edge of the door is bound by an angle-iron strip 1) andthe lower edge thereof is bound by an angle-iron strip a, and the left hand or front edge of the door is bound by aZ-bar strip 9. Angle-iron strip 6 and Z-bar 9 extend clear to the upper'corners of the door and the flanges thereof that lap against the outer surface of the door are mitered with the lower flange of the interlocking strip 10 that laps against the said outer surface, and the upper corners of the door are protected by triangular metal plates A and B, said strips 6 and 10 at the rear upper corner and strips 9 and 10 at the forward upper corner, substantially as shown in the drawings.

' The lower ends of angle-iron strip 7) and Z-bar strip 9 and the ends of the lower strip atermin ate short of the lower corners of the door and are protected and bound by plates C and D that connect the opposing ends of said strips.

' Thefouter edges of the doorframe project outward slightly beyond the sheathing and the door post thereof that is adapted to be engaged by the front edge of the door, has a Z-bar strip 13 secured thereto in such manner thatits outer flangestands out from said door post and provides a vertical channel or groove into which the forwardly projecting flange of the Z bar strip 9 of the door enters when the latter is closed.

At the upper left hand corner of the doorframe the flange of Z-bar 13 that is secured to the doorpost and the upper flange of the metal. guard 12 above the doorframe are connected by the outer depressed flanged edges of a truncated triangular shaped metal plate 17. This plate is built out from these depressed edges toform a housing for the upper left hand corner of the door which the latter enters when it is closed and is protected thereby in such manner as to thoroughly prevent moisture and dust entering the carat this point.

Door 8 is supported by rollers 18 and 19 upon a horizontal track that is secured to the under-frame below the doorframe of the car. This track consists of a deformed metal angle which has a comparatively wide horizontal member or plate 20 that rests upon and is secured to the upper flanged edge of brackets 21, 21, which latter are secured to the side of the car in such manner that the inner edge of said plate 20 is separated from the side of the car a sufficient distance to permit moisture and dust to drain from the track. The other shorter member or vertical flange 22, projecting down from the outer edge of this plate 20, laps down over the outer edges of brackets 21 a suitable distance; and a short distance back from the outer vertical surface of flange 22, plate 20 is provided with a longitudinally extending vertical ridge or rib 23 which constitutes the tread upon which the channeled rollers 18 and 19 travel.

Roller 18 is journaled under the forward part of the door, and roller 19 under the rear portion of the same in housings made integral with the cast metal corner plates 0 and D that bind the lower corners of the door. The only difference between platesC and D is that one is right and the other left. The rollers-are journaled in bearings in the vertical walls of rectangular boxshaped housings 2a which are built rearwardly from the back of each of said plates and are gained into the door near its lower corners. The vertical and horizontal edges of both plates, D and C, are flanged inward at 30 and 31 respectively and lap against and protect the adjacent edges of the door, and the portion of each horizontal flange forming the bottom of said housings 24: is open for the lower segments of the rollers to pass through. The horizontal flanges of plates C and D have downwardly projecting lugs 27 and 28 that straddle rib 23 upon which said rollers travel and are adapted to plow and scrape the snow and ice and cinders that may accumulate on plate 20 off over the inner and outer longitudinal edges thereof.

The vertical portions of plates 0 and D forming the outer walls of housings 24 have arms 26 depending therefrom that extend down past the outer vertical flange 22 of the track and have their lower extremities provided with integral inturned hooks 29 that catch under the lower edge of said flange 22 and limit the upward as well as the outward movement of the door. and prevent the rollers from jumping the track.

lVhat I claim as new is 1. The combination with a car having a doorway, brackets secured to and projecting from the sides of said car below the doorway, andv a track consisting of a flat plate secured to said bracket having a longitudinal rib arising therefrom, of a door, corner plates secured to the lower corners thereof each having lugs proj ecting downwardly from the ends of said horizontal flange that straddle said rib and serve to clear the same of obstructions, and concaved rollers that are journaled in said corner plate structure that travel on said rib.

2. The combination with a car having doorway, brackets secured to and projecting from the sides of said car below the doorway, and a track consisting of a flat plate secured to said brackets so that its inner edge is spaced away from the adjacent side of the car having a longitudinal rib arising therefrom, of a door, corner plates secured to the lower corners thereof each having a horizontal flange projecting from its lower edge that laps against the lower edge of the door and having lugs projecting downwardly from the ends of said horizontalflange that straddle said rib and serve to clear the same of obstructions, and concaved rollers that are journaled in said corner plate structure that travel on said rib.

3. The combination with a car having a doorway, brackets secured to and projecting from the sides of the car below the doorway. and a track consisting of a flat plate secured to said brackets having a longitudinal rib arising therefrom and having its outer edge flanged downward, of a sliding door, corner plates secured to the lower corners thereof, housings made integral with said cornerplates and gained into the lower edge thereof, rollers journaled in the vertical walls of the housing and projecting through an opening in the bottom thereof and traveling on said rib, and arms made integral with and projecting down from said plates the lower hooked extremities of which engage the lower edge of the flange.

4. The combination with a car having a doorway, brackets secured to and projecting from the sides thereof, and a track consisting of a flat plate which is secured to said brackets so that its inner edge is spaced away from the adjacent side of the car and having a longitudinal rib arising therefrom and its outer edge flanged, of a sliding door, corner-plates secured to the lower corners of said'door, a housing made integral with said corner-plates and gained into the lower edges of said door, lugs projecting down from the lower side of said plate that come close to said rib so as to clear the same of obstructions, rollers journaled in said housto run on said track, and means on the lower ings that travel on said rib, and arms that edge of the door adapted to move close to project down from said plates the lower said track and clear the same of obstructions. hooked ends of which engage the lower In witness whereof I have hereunto set my 5 edges of said flange. hand this 17th day of May, 1918.

5. The combination with a car having a doorway, of a door, a track for supporting CLINTON MURPHY" the bottom edge of the door, means for guid- Witnesses: ing and retaining the upper ed e of the A. F. MEDIN 10 door, rollers on the lower edge 0 the door J. A. HARTNETT. 

